Rhetorical Questions in Qur'an

أَفَمَن يَمْشِى مُكِبًّا عَلَىٰ وَجْهِهِۦٓ أَهْدَىٰٓ أَمَّن يَمْشِى سَوِيًّا عَلَىٰ صِرَٰطٍ مُّسْتَقِيمٍ

Then is one who walks fallen on his face better guided or one who walks erect on a straight path?